JP2021508219A - Reference signal transmission method and transmission device - Google Patents

Abstract

A transmission method and a transmission device for a reference signal are disclosed. In the above method, the following information, that is, the reference signal among the number N of the time domain symbols included in the time unit in which the reference signal is located, the positive integer M, and the N time domain symbols included in one time unit. Index information of the time domain symbol in which the reference signal is located, index information of the time domain symbol in which the reference signal is located among the preset M time domain symbols, the frame number of the frame in which the reference signal is located, and the frame in which the reference signal is located. According to at least one of the number B of time units contained in, or the time unit index obtained according to the subcarrier spacing of the bandwidth portion (BWP) in which the reference signal is located, the sequence group number and / or of the reference signal. It includes obtaining the sequence number, determining the reference signal according to the sequence group number and / or the sequence number, and transmitting the reference signal.

Description

This disclosure is based on Chinese Patent Application No. 201711311872 filed on December 11, 2017. Priority is claimed under No. X, and the entire contents are incorporated in this disclosure by citation.

Technical Fields The present disclosure relates to the field of communication technology, for example, to transmission methods and devices for transmitting reference signals.

Background In existing technology, in long term evolution (LTE) systems, the channel sounding reference signal (SRS) occupies one time domain symbol in the slot as an uplink reference signal (in a special uplink subframe). Can only occupy more than one time domain symbol in or in a special uplink pilot time slot (UpPTS)). Since the Zadoff Chu (ZC) sequence having better correlation performance is used for SRS and the acquisition parameter of the sequence group number u of the ZC sequence includes the subframe serial number, the sequence group number u is combined with the subframe. Change to achieve interference randomization.

In new radio (NR) systems, unlike LTE, SRS resources may occupy more than one time domain symbol in the slot, so to get better interference randomization effect, ZC An improved solution is needed that takes into account changes in the sequence group number of the sequence.

There is no effective solution to the problem in existing technology that the reference signal determination method cannot be applied to new radio systems with varying sequence group numbers and / or sequence numbers.

Summary The present disclosure provides a reference signal transmission method and apparatus that at least solves a problem in the existing technology that the reference signal determination method cannot be applied to a new radio system in which the sequence group number and / or the sequence number changes. To do. The requirements for new radio systems with varying sequence group numbers and / or sequence numbers can be met, thereby reducing interference between cell uplink measurement reference signals.

The present disclosure provides a method of transmitting a reference signal. The above method refers to the following information, that is, the number N of time domain symbols included in the time unit in which the reference signal is located, the positive integer M, and the above reference among the N time domain symbols included in one time unit. Index information of the time domain symbol where the signal is located, index information of the time domain symbol where the reference signal is located among the preset M time domain symbols, frame number of the frame where the reference signal is located, the reference signal According to at least one of the number B of time units contained in the frame in which the reference signal is located, or the time unit index obtained according to the subcarrier spacing of the bandwidth portion (BWP) in which the reference signal is located. This includes obtaining the sequence group number and / or the sequence number of the signal, determining the reference signal according to the sequence group number and / or the sequence number, and transmitting the reference signal.

M satisfies the following conditions, that is, M is N or less and A or more. A is the maximum number of time domain symbols that the reference signal can occupy in one time unit, or A is the number of time domain symbols that the reference signal can occupy in one time unit.

The present disclosure further provides a method of transmitting a reference signal. The method is at least one of the following actions, i.e., selecting one parameter set from a plurality of parameter sets, or selecting one expression from a plurality of expressions, according to signaling information or pre-agreed rules. Doing one, determining the sequence group number and / or the sequence number according to the selected parameter set and / or the selected equation, and the reference signal according to the sequence group number and / or the sequence number. It includes determining and transmitting the reference signal.

The present disclosure further provides a method of transmitting signaling. The method includes transmitting signaling information to a second communication node. Using the signaling information, one of the following actions, i.e., selecting the first parameter set from at least one parameter set, or selecting the first expression from at least one expression, The second communication node is instructed to execute and to determine the reference signal according to the first parameter and / or the first equation.

The present disclosure further provides a method of transmitting a reference signal. In the above method, the acquisition method of the parameter for generating at least one of the sequence group number or the sequence number is determined according to the signaling information or the agreement rule, and the above parameter is determined according to the acquisition method. It includes generating the sequence group number and / or the sequence number according to the parameters, determining the reference signal according to the sequence group number and / or the sequence number, and transmitting the reference signal.

The present disclosure further provides a reference signal transmission device. The device includes a first acquisition module, which contains the following information: the number N of time domain symbols contained in the time unit in which the reference signal is located, the positive integer M, and one time. Index information of the time domain symbol in which the reference signal is located among the N time domain symbols included in the unit, index of the time domain symbol in which the reference signal is located among the preset M time domain symbols Obtained according to information, the frame number of the frame in which the reference signal is located, the number B of time units included in the frame in which the reference signal is located, or the subcarrier spacing of the bandwidth portion (BWP) in which the reference signal is located. The device is configured to obtain the sequence group number and / or sequence number of the reference signal according to at least one of the time unit indexes, and the apparatus further follows the sequence group number and / or the sequence number. It includes a first determination module configured to determine the reference signal and a first transmission module configured to transmit the reference signal.

M satisfies the following conditions, that is, M is N or less and A or more. A is the maximum number of time domain symbols that the reference signal can occupy in one time unit, or A is the number of time domain symbols that the reference signal can occupy in one time unit.

The present disclosure further provides a reference signal transmission device. The device may perform at least one of the following actions, i.e., selecting one parameter set from a plurality of parameter sets, or selecting one expression from a plurality of expressions, according to signaling information or pre-agreed rules. An execution module configured to execute one and a second determination module configured to determine the sequence group number and / or the sequence number according to the selected parameter set and / or the selected equation. , A third determination module configured to determine the reference signal according to the sequence group number and / or the sequence number, and a second transmission module configured to transmit the reference signal.

The present disclosure further provides a reference signal transmission device. The apparatus includes a fourth determination module configured to determine a method for acquiring a sequence group number and / or a parameter for generating a sequence number according to signaling information or agreement rules, and the above parameters according to the acquisition method. A fifth determination module configured to determine, a first generation module configured to generate the sequence group number and / or the sequence number according to the parameters, and the sequence group number and / or the above. It includes a sixth determination module configured to determine the reference signal according to a sequence number and a third transmission module configured to transmit the reference signal.

The present disclosure further provides a storage medium. The storage medium stores a program that performs any of the above methods when executed.

The present disclosure further provides a processor. When executed, the processor is configured to execute a program that performs any of the above methods.

It is a figure of the schematic flowchart of the transmission method of the reference signal which concerns on one Embodiment. It is the schematic of the time domain symbol position occupied by the SRS resource 1 in the slot which concerns on one Embodiment. It is the schematic of the time domain symbol position occupied by the SRS resource 2 in the slot which concerns on one Embodiment. It is the schematic of the time domain symbol position occupied by the SRS resource 3 in the slot which concerns on one Embodiment. It is the schematic of the time domain symbol position occupied by the SRS resource 4 in the slot which concerns on one Embodiment. It is the schematic of the frame including 40 slots which concerns on one Embodiment. It is the schematic of the different BWP corresponding to the different slot serial number according to one embodiment.

Detailed Description The embodiments of the present disclosure provide mobile communication networks, including, but not limited to, 5th generation (5G) mobile communication networks. The network architecture of the network may include network-side devices (such as base stations) and terminals. The embodiment provides an information transmission method that can be executed on the network architecture. The operating environment of the above-mentioned reference signal transmission method provided in the embodiment is not limited to the above-mentioned network architecture.

The method provided in the embodiments of the present disclosure may be performed by a terminal or base station side. Both the terminal and the base station side may implement the methods provided in this disclosure.

The time unit described in the present disclosure is a slot, or subframe, or time domain symbol of a first subcarrier interval. The time domain symbols of the first subcarrier interval include Q second subcarrier time domain symbols. Q is a positive integer greater than or equal to 1. Another time unit may be provided as the time unit.

Embodiment 1
One embodiment of the present disclosure provides a method of transmitting a reference signal. With reference to FIG. 1, the methods provided by this embodiment include steps 110, 120 and 130.

In step 110, the following information, that is, the reference signal among the number N of time domain symbols included in the time unit in which the reference signal is located, the positive integer M, and the N time domain symbols included in one time unit. Index information of the time domain symbol in which the reference signal is located, index information of the time domain symbol in which the reference signal is located among the preset M time domain symbols, the frame number of the frame in which the reference signal is located, and the frame in which the reference signal is located. Acquires the sequence group number and / or sequence number of the reference signal according to at least one of the number B of time units contained in the, or the time unit index acquired according to the subcarrier interval of the BWP in which the reference signal is located. ..

In this embodiment, M satisfies the following conditions, that is, M is N or less and A or more. A is the maximum number of time domain symbols that a reference signal in one time unit can occupy, or A is the number of time domain symbols that a reference signal in one time unit occupies. In the present embodiment, when the reference signal is a measurement reference signal, the reference signal refers to a measurement reference signal resource such as an SRS resource.

In step 120, the reference signal is determined according to the sequence group number and / or the sequence number.

In step 130, the reference signal is transmitted.
In this embodiment, the transmission of the reference signal may include the transmission or reception of the reference signal.

In this embodiment, the execution order of steps 110, 120, and 130 may be interchangeable, i.e., the order of steps 110, 120, and 130 is not limited.

Through the above steps, the sequence group number and / or sequence number of the reference signal is acquired according to at least one of the information recorded in the embodiment, the reference signal is determined according to the sequence group number and / or the sequence number, and the reference signal is determined. To transmit. Therefore, the problem in the existing technology that the reference signal determination method cannot be applied to a new wireless system in which the sequence group number and / or the sequence number changes is solved, and the reference signal can be determined in a new wireless system. A scheme is provided that can meet the requirements for new radio systems with varying sequence group numbers and / or sequence numbers.

In one embodiment, M is the following information, i.e., the number of time domain symbols in a time domain symbol set that can be occupied by a reference signal in one time unit, and the time that the reference signal in one time unit occupies. Of the maximum number of time domain symbols, or the distance between the time domain symbol with the maximum index and the time domain symbol with the minimum index in the time domain symbol set that the reference signal within one time unit can occupy. Determined according to one of them. An index is an index of time domain symbols in a time domain symbol set contained in a time unit.

In one embodiment, N and / or M are of the following methods, i.e., N and / or M are carried in the received signaling information, or N and / or M are pre-agreed. On the other hand, it is decided.

In one embodiment, the steps of determining the reference signal according to the sequence group number and / or the sequence number are described in the following manner, i.e.

Includes determining the reference signal by.
Here, u is a sequence group number,

Is a reference signal

Is the length of the reference signal, δ is the total number of comb levels of interleaved frequency division multiple access (IFDMA), or δ is 0 and ω belongs to {0.1}.

On the condition that is greater than a predetermined threshold

Is. v is a sequence number, belongs to {0,1}, 0 ≦ α ≦ 2π, and

Is

The largest prime number less than.

Is less than or equal to a predetermined threshold

Is. Here, φ (n) is obtained by searching the preset table according to the sequence group number u, and v is 0.

In the present embodiment, regarding the total number of comb levels of IFDMA, for example, when the reference signal occupies one RE for each b resource element (RE) in orthogonal frequency division multiplexing (OFDM), the total number of comb levels. Is b.

In one embodiment, the index information of the time domain symbol in which the reference signal in the time domain symbol set included in one time unit is located is sequentially increased from back to front in time series. Indexes may be numbered from the end position, as well as in reverse order.

In one embodiment, the sequence group number of the reference signal is obtained by the following method: sequence group number = ( _fgh (x) + f _ss ) mod C, or sequence group number u is _fgh (x). Obtained according to.

Where f _gh (x) is a function for x, x contains at least one of the above information, C is the total number of sequence groups, f _ss is the signaling information received according to consensus rules and / or received. Obtained according to the parameters contained in.

In this embodiment, at least one of the information contained in x is the relevant information used to determine the sequence number in step 1.

In one embodiment

Is.
Here, h (x) is a function related to x. x includes at least one of the above information, and / or x includes a time-based time-by-time index within a frame. D is an integer of 8 or more, c (z) is the z-th value in the sequence generated by the random sequence function c (), and z is a non-negative integer.

In this embodiment, at least one of the information contained in x is the relevant information used to determine the sequence group number in step 1. x may further include a time unit index of the time unit in which the reference signal within one frame is located.

In one embodiment, provided that D is carried by the received signaling information, c () is a pseudo-random random sequence generation function, and the value of C is greater than 30: D is greater than 8,

At least one of them is satisfied.
In one embodiment, h (x) is the following equation:

Meet one of them.
Here, l ₁ is the index information of the time domain symbol in which the reference signal in the set including the preset M time domain symbols is located, and 0 ≦ l ₁ <M, and l ₂ is one. It is the index information of the time domain symbol in which the reference signal is located among the N time domain symbols included in the time unit, 0 ≦ l ₂ <N, and n ′ _f = n _f or n ′ _f = n _f. It is mod (E). Here, n _f is the frame number of the frame in which the reference signal is located, E is a predetermined value, and n _s is the time unit index acquired according to the subcarrier interval of the BWP in which the reference signal is located. Yes, or _ns is the time-based index at which the reference signal is located within one frame.

In one embodiment, the reference signal comprises at least one of a measurement reference signal, a demodulation reference signal, or a control channel frequency domain diffusion sequence.

In one embodiment, the step of acquiring the sequence number according to the information includes satisfying _{v = c (z 1) for the sequence number v in the case of sequence hopping.} Here, z ₁ is obtained according to at least one of the information, c (z) is the z-th value in the sequence generated by the random sequence function c (), and z is a non-negative integer.

In one embodiment, z ₁ is the following equation:

Obtained according to one of.
l ₁ is the index information of the time domain symbol in which the reference signal in the set including the preset M time domain symbols is located, 0 ≦ l ₁ <M, and l ₂ is one time unit. It is the index information of the time domain symbol in which the reference signal is located among the included N time domain symbols, 0 ≦ l ₂ <N, and n ′ _f = n _f or n ′ _f = n _f mod (E). ). n _f is the frame number of the frame in which the reference signal is located, E is a predetermined value, and n _s is the time unit index acquired according to the subcarrier interval of the BWP in which the reference signal is located, or , _Ns is a time-based index in which the reference signal within one frame is located.

Another embodiment of the present disclosure further provides a method of transmitting a reference signal. The method comprises the steps described below.

In step 1, at least one of the following actions, i.e., selecting one parameter set from a plurality of parameter sets, or selecting one expression from a plurality of expressions, according to signaling information or pre-agreed rules. Do one.

In step 2, the sequence group number and / or the sequence number is determined according to the selected parameter set and / or the selected expression.

In step 3, the reference signal is determined according to the sequence group number and / or the sequence number.

In step 4, the reference signal is transmitted. Transmission includes transmission or reception.
In one embodiment, the order of execution of step 1, step 2, step 3, and step 4 may be interchangeable, i.e., the order of step 1, step 2, step 3, and step 4 is limited in implementing the solution. Not done.

The above solution solves the problem in the existing technology that the reference signal determination method cannot be applied to a new wireless system in which the sequence group number and / or the sequence number changes, and the new wireless system determines the reference signal. Applicable schemes are provided to meet the requirements for new radio systems with varying sequence group numbers and / or sequence numbers.

In one embodiment, the plurality of parameter sets includes at least a first parameter set and a second parameter set.

In one embodiment, the first parameter set includes the following parameters, that is, the number of time domain symbols occupied by the reference signal in one time unit, L, the time occupied by the reference signal among the L time domain symbols. It contains at least one of the index information of the region symbol or the time unit index acquired according to the subcarrier interval of the BWP in which the reference signal is located.

The second parameter set includes the following parameters: the number N of time domain symbols contained in the time domain in which the reference signal is located, the positive integer M, and the index of the time domain symbols in which the reference signal is located in one time unit. Information, index information of the time domain symbol in which the reference signal is located among the preset M time domain symbols, the frame number of the frame in which the reference signal is located, and the number of time units included in the frame in which the reference signal is located B. , Or a time domain index obtained according to the subcarrier interval of the BWP in which the reference signal is located.

In this embodiment, the parameter set includes at least one parameter.
In one embodiment, the plurality of parameter sets includes at least a third parameter set and a fourth parameter set. The third parameter set contains time domain symbol index information and the fourth parameter set does not include time domain symbol index information.

In one embodiment, N and / or M are of the following methods, i.e., N and / or M are carried in the received signaling information, or N and / or M are pre-agreed. Determined according to one.

In one embodiment, the steps of determining the reference signal according to the sequence group number and / or the sequence number are described in the following manner, i.e.

Includes determining the reference signal with.
Here, u is a sequence group number,

Is a reference signal

Is the length of the reference signal, δ is the total number of comb levels of IFDMA, or v is 0 and ω belongs to {0.1}.

On the condition that is greater than a predetermined threshold

Is. v is a sequence number, belongs to {0,1}, 0 ≦ α ≦ 2π, and

Is

The largest prime number less than.

Is less than or equal to a predetermined threshold

Is. φ (n) is obtained by searching the preset table according to the sequence group number u, and v is 0.

In one embodiment, the sequence group number of the reference signal is obtained by the following method, i.e., the sequence group number u = ( _fgh (x) + f _ss ) mod C, or the sequence group number u is _fgh (x). ) Is obtained.

Where f _gh (x) is a function for x, x contains at least one of the above information, C is the total number of sequence groups, f _ss is the signaling information received according to consensus rules and / or received. Obtained according to the parameters contained in.

In one embodiment

Is.
Here, h (x) is a function related to x. x includes at least one of the above information, and / or x includes a time unit index within one frame. D is an integer of 8 or more, c (z) is the z-th value in the sequence generated by the random sequence function c (), and z is a non-negative integer.

In one embodiment, at least one of the following features is satisfied in the above embodiment. D is carried by the received signaling information, and c () is a pseudo-random random sequence generation function. Under the condition that the value of C is greater than 30, D is greater than 8.

In one embodiment, h (x) is the following equation:

Meet one of them.
Here, l ₁ is the index information of the time domain symbol in which the reference signal in the set including the preset M time domain symbols is located, and l ₂ is the index information of N times included in one time unit. the index information of the time domain symbol reference signal in the domain symbol is located _{is n 'f} = _n f or _{n' f = n f mod (} E). n _f is the frame number of the frame in which the reference signal is located, E is a predetermined value, and n _s is the time unit index acquired according to the subcarrier interval of the BWP in which the reference signal is located, or , _Ns is a time-based index in which the reference signal within one frame is located.

In one embodiment, the above equation is used to describe the hopping rules for sequence group numbers and / or sequence numbers.

In one embodiment, the sequence group number hopping formula

Includes at least one of. The hopping equation of sequence number v _{satisfies v = c (z 1} ). z ₁ is the following equation, that is,

Obtained according to one of.
Here, l ₁ is the index information of the time domain symbol in which the reference signal in the set including the preset M time domain symbols is located, and l ₂ is the index information of N times included in one time unit. the index information of the time domain symbol reference signal in the domain symbol is located _{is n 'f} = _n f or _{n' f = n f mod (} E). n _f is the frame number of the frame in which the reference signal is located, E is a predetermined value, B is the number of time units included in the frame in which the reference signal is located, and n _s is the number of time units in which the reference signal is located. a time unit index that is acquired in accordance with the sub-carrier spacing position BWP, or, n _s is an index of the time units reference signal in one frame is located.

The sequence group number u _{satisfies u = (f gh} (x) + f _ss ) mod C and

F _gh (x) is a function for x, x contains at least one of the above information, and C is the total number of sequence groups. D is an integer of 8 or more. c (z) is the z-th value in the random sequence generated by the random sequence function c (), and z is a non-negative integer. h (x) is a function with respect to x, where x contains at least one of the above information, and / or x contains a time unit index within a frame.

In one embodiment, the step of obtaining a sequence number according to a parameter comprises satisfying _{v = c (z 1) for the sequence number v in the case of sequence hopping.} z ₁ is acquired according to the parameter, c (z) is the z-th value in the sequence generated by the random sequence function c (), and z is a non-negative integer.

In one embodiment, z ₁ is the following equation:

Obtained according to one of.
l ₁ is the index information of the time domain symbol in which the reference signal in the set including the preset M time domain symbols is located, 0 ≦ l ₁ <M, and l ₂ is one time unit. It is the index information of the time domain symbol in which the reference signal is located among the included N time domain symbols, 0 ≦ l ₂ <N, and n ′ _f = n _f or n ′ _f = n _f mod (E). ). n _f is the frame number of the frame in which the reference signal is located, E is a predetermined value, and n _s is the time unit index acquired according to the subcarrier interval of the BWP in which the reference signal is located, or , _Ns is a time-based index in which the reference signal within one frame is located.

Another embodiment of the present disclosure further provides a method of transmitting signaling. The above method can be applied to the base station side, but it is not always the case. The method comprises the steps described below.

In step 1, signaling information is transmitted to the second communication node. The signaling information is used to perform at least one of the following actions: selecting the first parameter set from at least one parameter set, or selecting the first expression from at least one expression. Instruct the second communication node to determine the reference signal according to the first parameter and / or the first equation.

Another embodiment of the present disclosure further provides a method of transmitting a reference signal. The method comprises the steps described below.

In step 1, the method of acquiring the parameters for generating the sequence group number and / or the sequence number is determined according to the signaling information or the agreement rule.

In step 2, the parameters are determined according to the acquisition method.
In step 3, the sequence group number and / or the sequence number is generated according to the parameters.

In step 4, the reference signal is determined according to the sequence group number and / or the sequence number.

In step 5, the reference signal is transmitted. Transmission may include transmission or reception of a reference signal.

In one embodiment, the execution order of step 1, step 2, step 3, step 4 or step 5 is interchangeable, i.e., in implementing the solution of step 1, step 2, step 3, step 4 and step 5. The order is not limited.

The above solution solves the problem in the existing technology that the method of determining the reference signal cannot be applied to the change of the sequence group number and / or the sequence number in the new wireless system, and the new wireless system determines the reference signal. Applicable methods are provided to meet the requirements for sequence group number and / or sequence number variation in new wireless systems.

In one embodiment, the parameters for determining the sequence group number and / or the sequence number include at least one of a time domain symbol index or a number of time domain symbols.

In one embodiment, the time domain symbol index acquisition method includes at least two of the following acquisition methods. The time domain symbol index is an index of the time domain symbol in which the reference signal is located among the L time domain symbols. L is the number of time domain symbols occupied by the reference signal in one time unit.

The time domain symbol index is an index of the time domain symbol in which the reference signal is located among the N time domain symbols. N is the number of time domain symbols included in the time unit in which the reference signal is located.

The time domain symbol index is an index of the time domain symbol in which the reference signal is located among the M time domain symbols. M is the number of time domain symbols included in the time domain symbol set that can be occupied by the reference signal in one time unit.

In one embodiment, the acquisition method for the number of time domain symbols includes at least two of the following acquisition methods.

The number of time domain symbols is the number of time domain symbols occupied by the reference signal in one time unit. In this embodiment, when the reference signal is a measurement reference signal, the reference signal refers to a reference signal resource.

The number of time domain symbols is the number of time domain symbols included in the time unit in which the reference signal is located.

The number of time domain symbols is the number of time domain symbols contained in a time domain symbol set that can be occupied by a reference signal within one time unit.

An exemplary embodiment will be described below.
Illustrative Embodiment 1
In the present embodiment, when the length of the uplink sounding reference signal (SRS) is larger than the predetermined threshold value, the Zadoff-Chu (ZC) sequence is used for the SRS, and the sequence length of the SRS is predetermined. If it is below the threshold, a predetermined sequence is used.

In the present embodiment, in LTE, the SRS reference signal

Is the following formula

Obtained by.

Is the sequence length of SRS, m is the number of physical resource blocks (PRB) occupied by SRS, δ is the total number of comb levels in the IFDMA system, α is the cyclic shift parameter, and ω is {0, It belongs to 1} or is fixed to 0.

SRS sequence length

But

If greater than

Is.
v is a sequence number, belongs to {0,1}, 0 ≦ α ≦ 2π, and

Is

The largest prime number less than. In one embodiment, v is 0 if the number of PRBs occupied by the SRS is less than 6. If the number of PRBs occupied by the SRS is 6 or more, v can be 0 or 1.

SRS sequence length

But

If:

Is.
φ (n) is obtained by searching the preset table according to the sequence group number u.

u is a sequence group number and is obtained by the following formula.

c (z) is the z-th value in a pseudo-random random sequence. Given an initialization value, a random sequence can be generated. The initialization value in sequence generation is

A pseudo-random random sequence of length 31 is generated by the following method.

As can be seen from equation (2), if the sequence group number hopping is enabled, obtaining information of the sequence group number includes sub-frame serial number n _s. One SRS resource in NR may contain more than one time domain symbol in one slot. Thereby, the acquisition of the sequence group number can be improved. The sequence group number and / or the sequence number is obtained according to at least one of the following information: The above information includes the number N of the time domain symbols included in the time unit, the positive integer M, the index information of the time domain symbol in which the reference signal is located among the N time domain symbols included in one time unit, and the preset. Of the M time domain symbols, the index information of the time domain symbol in which the reference signal is located, the frame number of the frame in which the reference signal is located, or the number B of the time unit included in one frame. M is a positive integer less than or equal to N and greater than or equal to A. A is the maximum number of time domain symbols that a reference signal in one time unit can occupy, or A is the number of time domain symbols that a reference signal in one time unit occupies.

For example, the number of time domain symbols that an SRS resource can occupy in a slot is {1, 2, 4}. FIG. 3 is a schematic view of the time domain symbol position occupied by the SRS resource 2 in the slot according to the embodiment. As shown in FIG. 3, the SRS resource 2 occupies two time domain symbols in one slot. When A is 2, A is the number of time domain symbols occupied by the SRS resource 2 in one slot. Or, when A is 4, A is the maximum number of time domain symbols that SRS can occupy in one slot.

In one embodiment, the sequence number is obtained by using the following equation.

Or if group hopping is enabled

Is. C is the total number of sequence groups, and D satisfies at least one of the following four characteristics.

Feature 1: D is greater than 8 provided that the value of C is greater than 30.
Feature 2:

Feature 3:

Feature 4:

h () is a function and may be one of the following equations, or h () in the sequence number acquisition scheme is in an equation set formed by two or more of the following equations: Signaling indicates that it is an expression. For example, if the set of expressions is {(3-1), (3-2)}, then by signaling that h () is either expression (3-1) or expression (3-2). Shown. Or, when the equation set is {(3-1), (3-2), (3-3), (3-4)}, h () is equation (3-1), equation (3-2). ), Equation (3-3), or one of Equation (3-4) is indicated by signaling.

Alternatively, if sequence hopping is enabled, the sequence number v = c (z ₁ ). z ₁ is obtained by using one of the following equations.

Formula {(3-2), (3-4) , (3-2B), (3-4B)} in, B is the number of slots included in one _{frame, n} 'f = _{n f} or n' _f = n _f mode (E). n _f is the frame number of the frame in which the reference signal is located, or may also be referred to as the frame index. FIG. 6 is a schematic view of a frame including 40 slots according to an embodiment. As shown in FIG. 6, if one frame corresponds to 10 ms and one frame contains 40 slots, B is equal to 40. E is a predetermined value. In one embodiment, E is an integral multiple of C.

In the expression set {(3-1), (3-2), (3-1B), (3-2B)}, M is a time domain symbol included in the time domain symbol set that the SRS can occupy in the slot. Is the number of. As shown in FIGS. 2 to 5, the time domain symbols that can be occupied by SRS are the last six time domain symbols in one slot, and the number of time domain symbols occupied by one SRS resource in one slot is {. It belongs to 1, 2, 4}. In that case, M = 6. l ₁ is a relative index of the time domain symbol occupied by the SRS resource among the preset M time domain symbols. As shown in FIGS. 2 to 5, l ₁ is a relative index of the time domain symbol occupied by the SRS resource among the last six time domain symbols in one slot. As shown in FIG. 2, FIG. 2 is a schematic view of the time domain symbol position occupied by the SRS resource 1 in the slot according to the embodiment. The SRS resource 1 occupies the four time domain symbols {9,10,11,12} in the slot, and correspondingly l ₁ = {1,2,3,4}. As shown in FIG. 3, the SRS resource 2 occupies two time domain symbols {11, 12} in the slot, and correspondingly l ₁ = {3, 4}. FIG. 4 is a schematic diagram of the time domain symbol position occupied by the SRS resource 3 in the slot according to the embodiment. As shown in FIG. 4, the SRS resource 3 occupies two time domain symbols {12, 13} in the slot, and correspondingly l ₁ = {4,5}. FIG. 5 is a schematic view of the time domain symbol position occupied by the SRS resource 4 in the slot according to the embodiment. As shown in FIG. 5, the SRS resource 4 occupies one time domain symbol {12} in the slot, and correspondingly l ₁ = {4}.

The above-mentioned symbol index l ₁ of the M time domain symbols is numbered consecutively from front to back in the time series, that is, the index l _{1 of the first time domain symbol among the M time domain symbols.} Is 0. This embodiment is symbol index l ₁ of the M time-domain symbols that sequence number is swung from back to front in time series, i.e., the last time domain symbol of the M time domain symbol It does not exclude that the index l _{1 corresponds to 0.} As shown in FIGS. 2 to 5, l ₁ is a relative index of the time domain symbol occupied by the SRS resource among the last six time domain symbols in the slot. As shown in FIG. 2, the SRS resource 1 occupies four time domain symbols {9,10,11,12} in the slot, and correspondingly l ₁ = {4,3,2,1}. .. As shown in FIG. 3, the SRS resource 2 occupies two time domain symbols {11, 12} in the slot, and correspondingly l ₁ = {2, 1}. As shown in FIG. 4, the SRS resource 3 occupies two time domain symbols {12,13} in the slot, and correspondingly l ₁ = {1,0}. As shown in FIG. 4, the SRS resource 3 occupies one time domain symbol {12} in the slot, and correspondingly l ₁ = {1}.

In the equation set {(3-3), (3-4), (3-3B), (3-4B)}, if the number of time domain symbols contained in one slot is 14, then N = 14. is there. As shown in FIGS. 2 to 5, the time domain symbols that can be occupied by the SRS are the last six time domain symbols in the slot, and the number of time domain symbols occupied by the SRS resource in the slot is {1,2. , 4}. l ₂ is index information of the time domain symbols occupied by the SRS resource and included in the time domain symbol set in the slot. As shown in FIGS. 2 to 5, l ₂ is index information of the time domain symbols occupied by the SRS resource in the set including the 14 time domain symbols and contained in one slot. As shown in FIG. 2, the SRS resource 1 occupies four time domain symbols {9,10,11,12} in the slot, and correspondingly l ₂ = {9,10,11,12}. .. As shown in FIG. 3, the SRS resource 2 occupies two time domain symbols {11, 12}, and correspondingly l ₂ = {11, 12}. As shown in FIG. 4, the SRS resource 3 occupies two time domain symbols {12,13} in the slot, and correspondingly l ₂ = {12,13}. As shown in FIG. 5, the SRS resource 4 occupies one time symbol {12} in the slot, and correspondingly l ₂ = {12}.

l ₂ is the symbol index of the time domain symbol occupied by SRS among the N time domain symbols included in the slot, and the symbol index is continuously numbered from front to back in time series, that is, N. The start time domain symbol l _{2 of the} time domain symbols of is 0. In the present embodiment, the symbol indexes of the N time symbols included in the slot are sequentially numbered from front to back in time series, that is, the end time domain symbols among the N time domain symbols in the slot. It is not excluded that _{l 2} of 1 corresponds to 0. As shown in FIG. 2, the SRS resource 1 occupies four time domain symbols {9,10,11,12} in the slot, and correspondingly l ₂ = {4,3,2,1}. .. As shown in FIG. 3, the SRS resource 2 occupies two time domain symbols {11, 12} in the slot, and correspondingly l ₂ = {2, 1}. As shown in FIG. 4, the SRS resource 3 occupies two time domain symbols {12,13} in the slot, and correspondingly l ₂ = {1,0}. As shown in FIG. 5, the SRS resource 3 occupies one time domain symbol {12} in the slot, and correspondingly l ₂ = {1}.

In the present embodiment, the terminal determines the SRS reference signal according to the sequence group number and transmits the reference signal via the SRS port.

In the above, the acquisition of the reference signal sequence of the uplink measurement reference signal is taken as an example. Similarly, this method may be used for the reference signal sequence of the uplink demodulated reference signal, or for the sequence group number of the ZC sequence used for frequency domain diffusion of the uplink control channel. The detailed description is not repeated here.

In this embodiment, N and M are preset fixed values, but N and M are also referred to as acquisition parameters or input parameters of the function h ().

In another embodiment, the base station may also assign information about N and / or M to the terminal.

Illustrative Embodiment 2
In this embodiment, the base station transmits signaling information. The signaling information includes selection information for Q parameter sets. The terminal acquires the sequence group number and / or the sequence number of the reference signal according to the parameter set indicated by the signaling information, and acquires the reference signal according to the sequence group number and / or the sequence number. Q is a positive integer greater than or equal to 1.

For example, the Q parameter set includes a first parameter set and a second parameter set. The first parameter set includes the following parameters, that is, the number of time domain symbols occupied by the reference signal in one time unit L, and the index information of the time domain symbols occupied by the reference signal among the L time domain symbols. , Or a time-domain index obtained according to the BWP in which the reference signal is located. When the reference signal is a measurement reference signal, the number L of the time domain symbols occupied by the reference signal in one time unit is the number L of the time domain symbols occupied by the measurement reference signal resource in one time unit. ..

The second parameter set includes the following parameters: the number N of time domain symbols contained in one time unit, the positive integer M, the index information of the time domain symbols in which the reference signal is located in one time unit, and presets. The index information of the time domain symbol in which the reference signal is located among the M time domain symbols, the frame number, the number B of the time units contained in the frame, or the time unit index acquired according to the BWP in which the reference signal is located. , Includes at least one of.

The parameter set contains at least one parameter.
As shown in FIGS. 2 to 5, the number of time domain symbols occupied by the SRS resource in the slot belongs to {1, 2, 4}, and the last six time domain symbols occupied by the SRS belong to the slot. It is a time domain symbol.

When the sequence group number is acquired by the first parameter set, the equation h () of the sequence group number hopping (1-0) is as shown in the equation (4-1).

And / or when sequence number hopping is enabled, sequence number v = c (z ₁ ), where z ₁ is obtained by using the following equation.

L is the number of time domain symbols occupied by the SRS resource in the slot, and l ₀ is the index information of the time domain symbol occupied by the SRS resource among the L time domain symbols occupied by the SRS resource in the slot. Is. As shown in FIG. 2, the SRS resource 1 occupies four time domain symbols {9,10,11,12} in the slot, and correspondingly l ₀ = {0,1,2,3} and L. = 4. As shown in FIG. 3, the SRS resource 2 occupies two time domain symbols {11,12} in the slot, and correspondingly l ₀ = {0,1} and L = 2. As shown in FIG. 4, the SRS resource 3 occupies two time domain symbols {12,13} in the slot, and correspondingly l ₀ = {0,1} and L = 2. As shown in FIG. 5, the SRS resource 4 occupies one time domain symbol {12} in the slot, and correspondingly l ₀ = {0} and L = 1.

When the sequence group number is acquired by the second parameter set, the hopping equation h () of the sequence group number is one of the equations (4-2) to (4-5).

And / or when sequence number hopping is enabled, sequence number v = c (z ₁ ), where z ₁ is obtained by using the following equation.

Wherein the set {(4-3), (4-5) , (4-3B), (4-5B)} in, B is the number of slots included in one _{frame, n} 'f = _{n f} or n ′ _F = n _f mod (E). n _f is the frame number of the frame in which the reference signal is located, or may also be referred to as the frame index. FIG. 6 is a schematic view of a frame including 40 slots according to an embodiment. As shown in FIG. 6, if one frame corresponds to 10 ms and one frame contains 40 slots, B is equal to 40. E is a predetermined value, and in one embodiment, E is an integral multiple of C.

In the set of expressions {(4-2), (4-3), (4-2B), (4-3B)}, M is a time domain symbol included in the time domain symbol set that the SRS can occupy in the slot. Is the number of. As shown in FIGS. 2 to 5, the SRS can occupy the last 6 time domain symbols of one slot in the slot, and the number of time domain symbols occupied by the SRS resource in the slot is {1,2. , 4}. That is, the SRS resource can occupy the {1,2,4} time domain symbol of the last six time domain symbols in the slot, in which case M = 6. l ₁ is a relative index of the time domain symbol occupied by the SRS resource among the preset M time domain symbols. As shown in FIGS. 2 to 5, l ₁ is a relative index of the time domain symbol occupied by the SRS resource among the last six time domain symbols in one slot. As shown in FIG. 2, the SRS resource 1 occupies four time domain symbols {9,10,11,12} in the slot, and correspondingly l ₁ = {1,2,3,4}. .. As shown in FIG. 3, the SRS resource 2 occupies two time domain symbols {11, 12} in the slot, and correspondingly l ₁ = {3, 4}. As shown in FIG. 4, the SRS resource 3 occupies two time domain symbols {12, 13} in the slot, and correspondingly l ₁ = {4,5}. As shown in FIG. 5, the SRS resource 4 occupies one time domain symbol {12} in the slot, and correspondingly l ₁ = {4}.

The above-mentioned symbol index l ₁ of the M time domain symbols is numbered consecutively from front to back in the time series, that is, the index l _{1 of the first time domain symbol among the M time domain symbols.} Is 0. This embodiment is symbol index l ₁ of the M time-domain symbols that sequence number is swung from back to front in time series, i.e., the last time domain symbol of the M time domain symbol It does not exclude that the index l _{1 corresponds to 0.} As shown in FIGS. 2 to 5, l ₁ is a relative index of the time domain symbol occupied by the SRS resource among the last six time domain symbols in the slot. As shown in FIG. 2, the SRS resource 1 occupies four time domain symbols {9,10,11,12} in the slot, and correspondingly l ₁ = {4,3,2,1}. .. As shown in FIG. 3, the SRS resource 2 occupies two time domain symbols {11, 12} in the slot, and correspondingly l ₁ = {2, 1}. As shown in FIG. 4, the SRS resource 3 occupies two time domain symbols {12,13} in the slot, and correspondingly l ₁ = {1,0}. As shown in FIG. 5, the SRS resource 3 occupies one time domain symbol {12} in the slot, and correspondingly l ₁ = {1}.

In the expression set {(4-4), (4-5), (4-4B), (4-5B)}, when the number of time domain symbols contained in one slot is 14, N = 14 If there is, or if there are 14 time domain symbols in the slot where the reference signal is located, then N = 14. As shown in FIGS. 2 to 5, the time domain symbols that can be occupied by the SRS are the last six time domain symbols in the slot, and the number of time domain symbols occupied by the SRS resource in the slot is {1,2. , 4}. l ₂ is index information of the time domain symbols occupied by the SRS resource, included in the set including N time domain symbols, and included in one slot. As shown in FIGS. 2 to 5, l ₂ is index information of the time domain symbols occupied by the SRS resource in the set including the 14 time domain symbols and contained in one slot. As shown in FIG. 2, the SRS resource 1 occupies four time domain symbols {9,10,11,12} in the slot, and correspondingly l ₂ = {9,10,11,12}. .. As shown in FIG. 3, the SRS resource 2 occupies two time domain symbols {11,12} in the slot, and correspondingly l ₂ = {11,12}. As shown in FIG. 4, the SRS resource 3 occupies two time domain symbols {12,13} in the slot, and correspondingly l ₂ = {12,13}. As shown in FIG. 5, the SRS resource 4 occupies one time domain symbol {12} in the slot, and correspondingly l ₂ = {12}.

l ₂ is the symbol index of the time domain symbol occupied by SRS among the N time domain symbols included in the slot, and the symbol index is continuously numbered from front to back in time series, that is, N. The start time domain symbol l _{2 of the} time domain symbols of is 0. _{In the present embodiment, the symbol index l 2} of the N time symbols included in the slot is continuously numbered from front to back in chronological order, that is, the end time of the N time domain symbols in the slot. It is not excluded that the area symbol l _{2 corresponds to 0.} As shown in FIG. 2, the SRS resource 1 occupies four time domain symbols {9,10,11,12} in the slot, and correspondingly l ₂ = {4,3,2,1}. .. As shown in FIG. 3, the SRS resource 2 occupies two time domain symbols {11, 12} in the slot, and correspondingly l ₂ = {2, 1}. As shown in FIG. 4, the SRS resource 3 occupies two time domain symbols {12,13} in the slot, and correspondingly l ₂ = {1,0}. As shown in FIG. 5, the SRS resource 3 occupies one time domain symbol {12} in the slot, and correspondingly l ₂ = {1}.

In the present embodiment, the base station may also transmit signaling information indicating the formula used to obtain h () of the sequence group number acquisition formula (1-0) to the terminal. The above equation includes at least the equation (4-1) and one of the equation sets {(4-2) to (4-5)}.

Similarly, the base station may also transmit signaling information to the terminal indicating the equation used to obtain z ₁ of the sequence number hopping equation v = c (z _1). The above equation includes at least the equation (4-1B) and one of the equation sets {(4-2B) to (4-5B)}.

In another embodiment, the Q parameter set includes at least a third parameter set and a fourth parameter set. The third parameter set contains time domain symbol information and the fourth parameter set does not include time domain symbol information.

When the sequence group number is acquired by the fourth parameter set, h () of the sequence group number acquisition equation is as shown in the equation (4-6).

Similarly, to obtain the sequence number in the fourth parameter set, _{z 1} sequence number v = c _{(z 1)} is as shown in formula (4-6B).

The base station may also signal one of the expressions in the expression set referenced for sequence number hopping, the expression set being any of equations (4-1) to (4-6). Can include more than one.

Similarly, the base station may also signal one expression in the expression set referenced to obtain z _{1 of sequence number hopping v = c (z 1} ), the expression set being expression (4). It may include any two or more of -1B) to (4-6B).

The parameter set in this embodiment may also be selected from a plurality of parameter sets by using the rules agreed between the base station and the terminal. Similarly, the formula in this embodiment may also be selected from a plurality of formulas by using the rules agreed between the base station and the terminal.

Illustrative Embodiment 3
In this embodiment, the sequence group number of the uplink demodulation reference signal can also be obtained by using the method described in the above-described exemplary embodiment 1 and / or exemplary embodiment 2.

Illustrative Embodiment 4
In this embodiment, the frequency domain diffusion sequence group number of the uplink control channel can also be obtained by using the method described in the above-described exemplary embodiment 1 and / or exemplary embodiment 2.

For example, in physical uplink control channel (PUCCH) formats 1 and 2 in NR, the uplink control information is

Is diffused into the frequency domain by using, and the sequence group number u can also be obtained by using the method described in the above-described exemplary embodiment 1 and / or exemplary embodiment 2.

Illustrative Embodiment 5
In the present embodiment, _ns is the index information of the slot in which the reference signal is located among the B slots included in one wireless frame. Since the BWP on which the reference signal (SRS, etc.) is located is different, the subcarrier spacing corresponding to the BWP is different, and the number of slots included in one frame corresponding to the different BWP is different, that is, when B is different, _ns is different. n _s is obtained based on BWP the SRS is located.

FIG. 7 is a schematic diagram of different BWPs corresponding to different slot serial numbers according to one embodiment. As shown in FIG. 7, since one slot in BWP1 corresponding to two slots in BWP2, n _s in the above embodiment, the slot serial number reference signal is obtained in accordance with the sub-carrier spacing of BWP located Is. For example, if the frame is 10 ms, one frame containing 20 slots is obtained according to the subcarrier spacing corresponding to BWP1 and one frame containing 40 slots is obtained according to the subcarrier spacing corresponding to BWP2. At time t, when the BWP at which the reference signal is currently located is BWP1 as shown in FIG. 7, n _s = x, and when the BWP at which the reference signal is currently located is BWP2 as shown in FIG. , N _s = 2x or n _s = 2x + 1.

Exemplary Embodiment 6
In the present embodiment, the acquisition method of the sequence group number or the parameter of the sequence number is determined by the signaling information or the agreement rule.

In one embodiment, the sequence group number u is obtained according to equations (6-1) and (6-2).

Here, h (l ₅ , N ₅ , n _s ) = l ₅ + n _s * N ₅ .
Alternatively, when sequence number hopping is enabled, sequence number v = c (z ₁ ) and z ₁ = l ₅ + n _s * N ₅ .

Acquisition mode (l _{5, N 5)} the meaning of either determined by signaling information or agreed rule, or (l _{5, N 5)} is determined by the signaling information or agreed rules. The acquisition method includes at least two of the three methods.

Method 1: (l ₅ , N ₅ ) = (l ₀ , L). L is the number of time domain symbols occupied by the SRS resource in the slot. As shown in FIG. 2, L = 4, l ₅ is the index of the time domain symbol in which the reference signal is located among the L time domain symbols, and 0 ≦ l ₅ ≦ L-1. _{For example, l 5} of the time domain symbol 9 where the reference signal of FIG. 2 is located is 0.

Method 2: (l ₅ , N ₅ ) = (l ₁ , M). M is the number of time domain symbols contained in the time domain symbol set that can be occupied by the SRS in the slot. As shown in FIG. 2, the SRS of all users can occupy only the {1,2,4} time domain symbols of the last six time domain symbols in one slot, in which case M = 6. l ₅ is the index of the time domain symbol in which the reference signal is located among the M time domain symbols, and is 0 ≦ l ₅ ≦ M-1. _{For example, l 5} of the time domain symbol 9 where the SRS in FIG. 2 is located is 1.

Method 3: (l ₅ , N ₅ ) = (l ₂ , N). N is the number of time domain symbols contained in the slot in which the SRS resource is located. As shown in FIG. 2, N = 14, l ₅ is the index of the time domain symbol in which the reference signal is located among the L time domain symbols, and 0 ≦ l ₅ ≦ N-1. _{For example, l 5} of the time domain symbol 9 where the reference signal of FIG. 2 is located is 9.

Illustrative Embodiment 7
In the present embodiment, the following information, that is, a reference among the number N of time domain symbols included in the time unit in which the reference signal is located, the positive integer M, and the N time domain symbols included in one time unit Index information of the time domain symbol where the signal is located, index information of the time domain symbol where the reference signal is located among the preset M time domain symbols, frame number of the frame where the reference signal is located, and the reference signal are located. The sequence number is acquired according to at least one of the number B of time units included in the frame or the time unit index acquired according to the subcarrier interval of the BWP in which the reference signal is located. The reference signal is acquired according to the sequence number and transmitted via the reference signal port.

In one embodiment, the reference signal

, V is the sequence number, and v is the following equation, ie

Is obtained by using.
c (z _{1 ) is the z first} value of the pseudo-random random sequence. The initialization value of the pseudo-random random sequence is obtained by the agreement rule. The acquisition formula for z ₁ is the following formula, that is,

It can be one of them.
l ₁ is the index information of the time domain symbols in which the reference signals in the preset set including the M time domain symbols are located, and 0 ≦ l ₁ <M. l ₂ is the index information of the time domain symbol in which the reference signal is located among the N time domain symbols included in one time unit, 0 ≦ l ₂ <N, and n ′ _f = n _f or _n'f = n _f mod (E). n _f is the frame number of the frame in which the reference signal is located, and E is a predetermined value. B is the number of time units included in the frame in which the reference signal is located. B is the number of slots contained in the frame in which the reference signal is located.

Although the uplink reference signal is taken as an example in the above-described embodiment, the present disclosure does not exclude that the reference signal is a downlink reference signal.

From the description of the above-described embodiment, it will be understood by those skilled in the art that the method of any of the above-described embodiments may be realized by software plus a general-purpose hardware platform, or may be realized by hardware. Can be done. Based on such understanding, the solutions provided by the present disclosure may be embodied in the form of software products. The above computer software products are stored in non-temporary storage media (read-only memory (ROM), random access memory (RAM), magnetic disks, optical disks, etc.), and the storage media are terminal devices (mobile phones, computers, servers, etc.). Also includes a number of instructions that can cause a network device) to perform the method described in any embodiment of the present disclosure.

Embodiment 2
The present embodiment further provides a reference signal transmission device. The device is configured to implement the embodiment described above. What has already been explained is not repeated. The term "module" as used below may be software, hardware or a combination thereof that can realize a predetermined function. The devices described in the following embodiments may be realized by software, but can also be realized by hardware or by a combination of software and hardware, and are assumed.

Another embodiment of the present disclosure further provides a reference signal transmission device. The device includes a first acquisition module, a first determination module, and a first transmission module. The first acquisition module has the following information, that is, the number N of the time domain symbols included in the time unit in which the reference signal is located, the positive integer M, and the N time domain symbols included in one time unit. Index information of the time domain symbol where the reference signal is located, index information of the time domain symbol where the reference signal is located among the preset M time domain symbols, frame number of the frame where the reference signal is located, and the position of the reference signal. The sequence group number and / or sequence number of the reference signal is determined according to at least one of the number B of time units contained in the frame or the time unit index obtained according to the subcarrier interval of the BWP in which the reference signal is located. Configured to get. The first determination module is configured to determine the reference signal according to the sequence group number and / or the sequence number. The first transmission module is configured to transmit a reference signal. M satisfies the following conditions, that is, M is N or less and A or more. A is the maximum number of time domain symbols that a reference signal in one time unit can occupy, or A is the number of time domain symbols that a reference signal in one time unit occupies.

Another embodiment of the present disclosure further provides a reference signal transmission device. The device may perform at least one of the following actions, i.e., selecting one parameter set from a plurality of parameter sets, or selecting one expression from a plurality of expressions, according to signaling information or pre-agreed rules. An execution module configured to execute one and a second determination module configured to determine the sequence group number and / or the sequence number according to the selected parameter set and / or the selected expression, and the sequence. It includes a third decision module configured to determine the reference signal according to the group number and / or sequence number, and a second transmission module configured to transmit the reference signal.

Another embodiment of the present disclosure further provides a reference signal transmission device. The device determines a fourth determination module configured to determine a parameter acquisition method for generating a sequence group number and / or a sequence number according to signaling information or agreement rules, and a parameter according to the acquisition method. A fifth determination module configured to generate sequence group numbers and / or sequence numbers according to parameters, and a first generation module configured to generate sequence group numbers and / or sequence numbers to determine reference signals. It includes a sixth decision module configured to transmit a reference signal and a third transmission module configured to transmit the reference signal.

In this embodiment, the module of the device in any of the above embodiments may perform the corresponding methods and steps in Embodiment 1.

The plurality of modules described above may be implemented by software or hardware. Hardware implementation can be performed in the following ways, but not always. That is, the plurality of modules described above exist in the same processor, or are arbitrarily combined and exist in each processor.

Embodiment 3
Another embodiment of the present disclosure further provides a processor. The processor, when executed, is configured to execute a program that performs any one of the above embodiments.

Embodiment 4
Another embodiment of the present disclosure further provides a storage medium. The storage medium stores a program that, when executed, performs any one of the above embodiments.

Those skilled in the art will appreciate that at least one module or at least one step described above of the present disclosure may be implemented by a general purpose computer, and that at least one module or at least one step described above is a single calculation. It should be understood that it may be centralized on a device or distributed on a network of multiple computing devices. In one embodiment, the at least one module or at least one step described above may be implemented by program code executable by the arithmetic unit, and thus they may be stored in storage and executed by the arithmetic unit. .. In some cases, the steps illustrated or described may be performed in a different order than those described herein, or at least one module or at least one step described above may be performed separately in at least one integrated circuit module. Alternatively, the modules or steps herein may be implemented as a single integrated circuit module. As such, the disclosure is not limited to any specific combination of hardware and software.

Claims (35)

It is a transmission method of the reference signal.
The following information, ie
The number N of the time domain symbols included in the time unit in which the reference signal is located, the positive integer M, and the index information of the time domain symbol in which the reference signal is located among the N time domain symbols included in the time unit. , Index information of the time domain symbol in which the reference signal is located among the preset M time domain symbols, the frame number of the frame in which the reference signal is located, and the time unit included in the frame in which the reference signal is located. At least one of the sequence group numbers or sequence numbers of the reference signal according to the number B of the reference signal, or at least one of the time unit indexes acquired according to the subcarrier spacing of the bandwidth portion (BWP) where the reference signal is located. To get one and
Determining the reference signal according to at least one of the sequence group number or the sequence number.
Including transmitting the reference signal
M satisfies the following conditions, that is, M is N or less and A or more, and A is the maximum number of time domain symbols that the reference signal can occupy in one time unit, or A is the number of time domain symbols occupied by the reference signal in one time unit, the method. M is the following information, that is,
The number of time domain symbols contained in the time domain symbol set that the reference signal can occupy in one time unit,
With the maximum number of time domain symbols occupied by the reference signal in one time unit, or with the time domain symbol having the maximum index in the time domain symbol set that the reference signal can occupy in one time unit. Determined according to one of the distances to the time domain symbol with the smallest index,
The method according to claim 1, wherein the index is an index of a time domain symbol in the time domain symbol set included in the time unit. At least one of N or M has the following method, that is,
The first aspect of claim 1, wherein at least one of N or M is carried by the received signaling information, or at least one of N or M is determined according to one of the previously agreed. Method. Determining the reference signal according to the sequence group number or at least one of the sequence numbers is a method of determining the reference signal in the following manner, i.e.
Be prepared to decide by
u is the sequence group number
Is the reference signal
Is the length of the reference signal, δ is the total number of comb levels of interleaved frequency division multiple access (IFDMA), or δ is 0 and ω belongs to {0,1}.
On the condition that is greater than a predetermined threshold
And
v is the sequence number, belongs to {0,1}, and is 0 ≦ α ≦ 2π.
Is
The largest prime number less than
Is less than or equal to the predetermined threshold
The method according to claim 1, wherein φ (n) is obtained by searching the preset table according to the sequence group number u, and v is 0. The method according to claim 1, wherein the index information of the time domain symbol in which the reference signal is located in the time domain symbol set included in one time unit is sequentially increased from the back to the front in a time series. Acquiring the sequence group number of the reference signal according to at least one of the following information means that the sequence group number of the reference signal is obtained by the following method, that is,
The sequence group number u = (f _gh (x) + f _ss ) mod C, or the sequence group number u is provided by being acquired according to _{f gh (x).}
f _gh (x) is a function for x, x comprises at least one of the above information, C is the total number of sequence groups, and f _ss is of the agreement rules or parameters contained in the received signaling information. The method according to claim 1, which is obtained according to at least one of the above. And
h (x) is a function related to x
The method according to claim 6, wherein D is an integer of 8 or more, c (z) is the z-th value in the sequence generated by the random sequence function c (), and z is a non-negative integer. The method has the following features:
D is carried by the received signaling information,
c () is a pseudo-random random sequence generation function,
Under the condition that the value of C is greater than 30, D is greater than 8.
The method according to claim 7, wherein at least one of the above is satisfied. h (x) is the following equation, that is,
Meet one of
l ₁ is the index information of the time domain symbol in which the reference signal is located in the set including the preset M time domain symbols, 0 ≦ l ₁ <M, and l ₂ is the said. It is the index information of the time domain symbol in which the reference signal is located among the N time domain symbols included in the time unit, 0 ≦ l ₂ <N, and n ′ _f = n _f or n ′. _f = n _f mod (E), n _f is the frame number of the frame in which the reference signal is located, E is a predetermined value, and n _s is the said frame in which the reference signal is located. it is said time unit index that is obtained according to the sub-carrier spacing of BWP, or, n _s is an index of time units the reference signal in one frame is located the method of claim 7. The method of claim 1, wherein the reference signal comprises at least one of a measurement reference signal, a demodulation reference signal, or a control channel frequency domain diffusion sequence. Acquiring the sequence number of the reference signal according to at least one of the following information
In the case of sequence hopping, the sequence number v _{satisfies v = c (z 1} ), z ₁ is obtained according to at least one of the above information, and c (z) is a sequence generated by the random sequence function c (). The method according to claim 1, wherein the z-th value is a non-negative integer. z ₁ is the following equation, that is,
Obtained according to one of
l ₁ is the index information of the time domain symbol in which the reference signal is located in the set including the preset M time domain symbols, 0 ≦ l ₁ <M, and l ₂ is the said. It is the index information of the time domain symbol in which the reference signal is located among the N time domain symbols included in the time unit, 0 ≦ l ₂ <N, and n ′ _f = n _f or n ′. _f = n _f mod (E), n _f is the frame number of the frame in which the reference signal is located, E is a predetermined value, and n _s is the said frame in which the reference signal is located. it is said time unit index that is obtained according to the sub-carrier spacing of BWP, or, n _s is an index of time units the reference signal in one frame is located the method of claim 11. It is a transmission method of the reference signal.
Performs at least one of the following actions, namely selecting one parameter set from multiple parameter sets, or selecting one expression from multiple expressions, according to signaling information or pre-agreed rules. That and
Determining at least one of a sequence group number or sequence number according to at least one of the selected parameter set or the selected expression.
Determining the reference signal according to the sequence group number or at least one of the sequence numbers.
A method comprising transmitting the reference signal. The plurality of parameter sets include at least a first parameter set and a second parameter set.
The first parameter set includes the following parameters, that is, the number L of the time domain symbols occupied by the reference signal in one time unit, and the time domain symbols occupied by the reference signal among the L time domain symbols. The index information of the above, or the time unit index acquired according to the subcarrier interval of the bandwidth portion (BWP) where the reference signal is located.
The second parameter set includes the following parameters, that is, the number N of time domain symbols included in the time unit in which the reference signal is located, the positive integer M, and the time domain in which the reference signal is located in one time unit. The index information of the symbol, the index information of the time domain symbol in which the reference signal is located among the preset M time domain symbols, the frame number of the frame in which the reference signal is located, and the frame in which the reference signal is located. 13. The method of claim 13, comprising at least one of a number B of time units included, or a time unit index acquired according to the subcarrier spacing of the bandwidth portion (BWP) where the reference signal is located. The plurality of parameter sets include at least a third parameter set and a fourth parameter set, the third parameter set includes time domain symbol index information, and the fourth parameter set includes time domain symbol index information. The method according to claim 13, which does not include. At least one of N or M has the following method, that is,
14. The 14th aspect, wherein at least one of N or M is carried by the received signaling information, or at least one of N or M is determined according to one of the pre-agreed. Method. Determining the reference signal according to the sequence group number or at least one of the sequence numbers is a method of determining the reference signal in the following manner, i.e.
Be prepared to decide by
u is the sequence group number
Is the reference signal
Is the length of the reference signal, δ is the total number of comb levels of interleaved frequency division multiple access (IFDMA), or δ is 0 and ω belongs to {0,1}.
On the condition that is greater than a predetermined threshold
And
v is the sequence number, belongs to {0,1}, and is 0 ≦ α ≦ 2π.
Is
The largest prime number less than
Is less than or equal to the predetermined threshold
13. The method of claim 13, wherein φ (n) is obtained by searching the preset table according to the sequence group number u, and v is 0. Determining the sequence group number according to at least one of the selected parameter set or the selected expression
The sequence group number u comprises _{satisfying u = (f gh} (x) + f _ss ) mod C, or the sequence group number u is _{obtained according to f gh} (x).
f _gh (x) is a function for x, x comprises at least one piece of information in the selected parameter set, C is the total number of sequence groups, and f _ss is included in the consensus rule or received signaling information. 13. The method of claim 13, which is obtained according to at least one of the parameters. And
h (x) is a function related to x
The method according to claim 18, wherein D is an integer of 8 or more, c (z) is the z-th value in the sequence generated by the random sequence function c (), and z is a non-negative integer. The following features, ie
D is carried by the received signaling information,
c () is a pseudo-random random sequence generation function,
Under the condition that the value of C is greater than 30, D is greater than 8.
19. The method of claim 19, wherein at least one of these is satisfied. h (x) is the following equation, that is,
Meet one of
l ₁ is the index information of the time domain symbol in which the reference signal is located in the set including the preset M time domain symbols, 0 ≦ l ₁ <M, and l ₂ is the said. It is the index information of the time domain symbol in which the reference signal is located among the N time domain symbols included in the time unit, 0 ≦ l ₂ <N, and n ′ _f = n _f or n ′. _f = n _f mod (E), n _f is the frame number of the frame in which the reference signal is located, E is a predetermined value, and B is in the frame in which the reference signal is located. the number of time units contained, n _s is the time unit index that is acquired in accordance with the sub-carrier spacing of the bandwidth subset (BWP) of the reference signal is located, or, n _s is the within one frame 19. The method of claim 19, wherein the reference signal is an index in time units in which it is located. 13. The method of claim 13, wherein the plurality of formulas are used to describe a hopping rule for the sequence group number or at least one of the sequence numbers. The hopping formula of the sequence group number is
Equipped with at least one of
The hopping formula of the sequence number _{satisfies v = c (z 1} ), and z ₁ is the following formula, that is,
Obtained according to one of
l ₁ is the index information of the time domain symbol in which the reference signal is located in the set including the preset M time domain symbols, and l ₂ is the index information of N time domain symbols included in one time unit. an the index information of the time domain symbols the reference signal is located out of _{a n} 'f = _{n f} or _{n' f = n f mod (} E), the _{n f} of the frame in which the reference signal is located a frame number, E is a predetermined value, B is the number of time units contained in the frame in which the reference signal is located, n _s is the bandwidth subset (BWP which the reference signal is located ) is a unit of time index that is acquired in accordance with the sub-carrier interval, or, n _s is an index of time units the reference signal in one frame is positioned,
The sequence group number u = (f _gh (x) + f _ss ) mod C.
22. Claim 22, where C is the total number of sequence groups, D is an integer greater than or equal to 8, c (z) is the z-th value in the random sequence, and z is a non-negative integer. Method. Determining the sequence number according to the selected parameters and the selected equation
In the case of sequence hopping, the sequence number v _{satisfies v = c (z 1} ), z ₁ is obtained according to the above parameters, and c (z) is the z-th value in the sequence generated by the random sequence function c (). 13. The method of claim 13, wherein z is a non-negative integer. z ₁ is the following equation, that is,
Obtained according to one of
l ₁ is the index information of the time domain symbol in which the reference signal is located in the set including the preset M time domain symbols, 0 ≦ l ₁ <M, and l ₂ is one time unit. It is the index information of the time domain symbol in which the reference signal is located among the N time domain symbols included in, 0 ≦ l ₂ <N, and n ′ _f = n _f or n ′ _f = n _f. mod (E), n _f is the frame number of the frame in which the reference signal is located, E is a predetermined value, and n _s is the bandwidth portion (BWP) in which the reference signal is located. a time unit index that is acquired in accordance with the sub-carrier interval, or, n _s is an index of time units the reference signal in one frame is located the method of claim 24. It is a method of transmitting signaling,
Equipped with sending signaling information to the communication node
The signaling information is to perform at least one of the following actions: selecting one parameter set from at least one parameter set, or selecting one expression from at least one expression. And a method configured to instruct the communication node to determine a reference signal according to at least one of the selected parameters or the selected equation. It is a transmission method of the reference signal.
Determining how to obtain parameters to generate at least one of a sequence group number or a sequence number according to signaling information or consensus rules.
Determining the parameters according to the acquisition method
To generate the sequence group number or at least one of the sequence numbers according to the parameters.
Determining the reference signal according to the sequence group number or at least one of the sequence numbers.
A method comprising transmitting the reference signal. 27. The method of claim 27, wherein the parameter comprises at least one of a time domain symbol index or a number of time domain symbols. The acquisition method of the time domain symbol index is at least the following three acquisition methods, that is,
The time domain symbol index is an index of the time domain symbol in which the reference signal is located among the L time domain symbols, and L is the number of time domain symbols occupied by the reference signal in one time unit. Is,
The time domain symbol index is an index of the time domain symbol in which the reference signal is located among the N time domain symbols, and N is the number of time domain symbols included in the time unit in which the reference signal is located. There is, and the time domain symbol index is an index of the time domain symbol in which the reference signal is located among M time domain symbols, and M is the time that the reference signal can occupy in one time unit. 28. The method of claim 28, comprising the number of time domain symbols included in the time domain symbol set. The acquisition method of the number of time domain symbols is at least the following three acquisition methods, that is,
The number of time domain symbols is the number of time domain symbols occupied by the reference signal in one time unit.
The number of time domain symbols is the number of time domain symbols included in the time unit in which the reference signal is located, and the number of time domain symbols is the time that the reference signal can occupy in one time unit. 28. The method of claim 28, comprising the number of time domain symbols included in the time domain symbol set. A reference signal transmission device
The acquisition module comprises the following information, that is,
Index information of the time domain symbol in which the reference signal is located among the number N of time domain symbols included in the time unit in which the reference signal is located, positive integer M, and N time domain symbols included in one time unit. , Index information of the time domain symbol in which the reference signal is located among the preset M time domain symbols, the frame number of the frame in which the reference signal is located, and the time unit included in the frame in which the reference signal is located. At least one of the sequence group numbers or sequence numbers of the reference signal according to the number B of, or at least one of the time unit indexes obtained according to the subcarrier spacing of the bandwidth portion (BWP) where the reference signal is located. The device is further configured to acquire one
A determination module configured to determine the reference signal according to the sequence group number or at least one of the sequence numbers.
A transmission module configured to transmit the reference signal is provided.
M satisfies the following conditions, that is, M is N or less and A or more, and A is the maximum number of time domain symbols that the reference signal can occupy in one time unit, or A is a device, which is the number of time domain symbols occupied by the reference signal in one time unit. A reference signal transmission device
Performs at least one of the following actions, namely selecting one parameter set from multiple parameter sets, or selecting one expression from multiple expressions, according to signaling information or pre-agreed rules. Execution module configured as
A first determination module configured to determine at least one of a sequence group number or sequence number according to at least one of the selected parameter set or the selected equation.
A second determination module configured to determine the reference signal according to the sequence group number or at least one of the sequence numbers.
A device comprising a transmission module configured to transmit the reference signal. A reference signal transmission device
A first determination module configured to determine how to obtain parameters for generating at least one of a sequence group number or a sequence number according to signaling information or consensus rules.
A second determination module configured to determine the parameters according to the acquisition method,
A generation module configured to generate the sequence group number or at least one of the sequence numbers according to the parameters.
A third determination module configured to determine the reference signal according to the sequence group number or at least one of the sequence numbers.
A device comprising a transmission module configured to transmit the reference signal. A storage medium containing a program that, when executed, performs the method according to any one of claims 1-30. A processor that, when executed, is configured to execute a program that performs the method according to any one of claims 1-30.